This drama tells the story of an investigation agency called the “Domain exception resolution room” that solves the “Unsolvable Abnormalities” that cannot be clarified using modern events around them and the most cutting-edge scientific investigations.The object of handling the incident is “ all fields ”, “ Shen Yin ” “ Shadow Man ” “ Fox Possession ” “ Paranormal ” etc., challenging “ Abnormalities ” that cannot be thought of using the common sense of modern science.

Komu Amano (Alice Hirose), a member of the honor guard of the Metropolitan Police Department Music Band, was suddenly ordered to be transferred to “Domain exception resolution room”, commonly known as “全码”.She goes to the strange-looking solution room headquarters, where acting head Yuya Kotama (Fujiwara Tatsuya) is waiting for her.

The so-called “Total Decision” is the world's oldest investigative agency that has been in existence since the Yamato Imperial Court. It is an agency directly under the Cabinet Secretariat and is responsible for investigating “unsolvable incidents” that are like paranormal phenomena.Xiaomeng was surprised that such an institution existed, and wondered why she was assigned here.

Xingyu explained to Xiaomeng the “Shenyin Incident” currently under investigation.The original incident occurred six months ago.All that was left at the scene were clothes and belongings, as well as a large amount of blood.No body was found and it looked as if the human body had suddenly disappeared.Afterwards, a criminal statement by Hilko, one of the pillars of God, appeared on the Internet.Since then, similar incidents have occurred one after another, and Hilko has issued a statement each time.People gradually began to believe in and fear Silko's existence, and there were even admirers among them.

Xingyu and Xiaomeng followed the instructions of Director Ukizhi Minsheng (Fumiyo Kohinata) and went to the Metropolitan Police Department to search for a section in order to participate in a joint investigation.After arriving at the First Investigation Division, there were Kengo Aramami (Yusuke Nakayama), Nonoko Ninomiya (Riko Narumi), and Tenma Kitano (Rio Komiya) from the First Investigation Division, and they were looking at the investigation data.

Although Aranami looked surprised at Kotama and the others, he still explained that Rui Matsugiya (a native of Yoshimura Kai) was being investigated as an important suspect.Matsugiya originally belonged to an underground idol group, and after its disbandment, he made money by dating female fans.Among the 8 mysterious incidents that have occurred so far, he has become the first discoverer in the last 3 cases, and all 3 people are ardent fans who have dated Matsugiya.However, Matsugiya was working in a shared office at the time of the crime and was caught on a security camera, so he had an alibi.After the first incident, Matsugiya started saying “I can see Hilko”, causing a huge topic on SNS.

Since then, Matsugiya has also called on netizens to pay attention to Hilko on SNS and video websites. Now he has become a popular Internet celebrity with more than 8 million fans.Matsugiya said: When Hilko gets close, the space will distort.A security camera near the crime scene captured figures moving like a broken mosaic.But Xingyu said that this prisoner may not be Hilko, but the Shadow Man (the glowing humanoid UMA)...

Is this really the work of Shenyin, or is it the work of a person from the shadows?The answer that Xingyu and the others led out was——!?